feat(diffusers): add experimental support for sd_embed-style prompt embedding #8504
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Signed-off-by: Austen Dicken <cvpcsm@gmail.com>
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Signed-off-by: Austen Dicken <cvpcsm@gmail.com>
Signed-off-by: Austen Dicken <cvpcsm@gmail.com>
mudler
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Feb 11, 2026
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Looks reasonable here, and keeps backward compatibility
mudler
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Feb 11, 2026
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| _ONE_DAY_IN_SECONDS = 60 * 60 * 24 | ||
| COMPEL = os.environ.get("COMPEL", "0") == "1" | ||
| SD_EMBED = os.environ.get("SD_EMBED", "0") == "1" |
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the only minor nit, but that we could probably follow-up, is that we are trying to move away from passing options to backends via env, and we are prefering via options instead.
This is mainly because it's otherwise difficult to fine-grain control envs across different models/backends.
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Description
Adds support for sd_embed-style prompt embedding for the models supported by it. This is the style portrayed in the diffusers weighted prompting doc, so I thought it would be good to support.
Feature is locked behind an environment variable (SD_EMBED=1) similar to compel-style prompt embedding (COMPEL=1).
Notes for Reviewers
I tested by building cuda13-diffusers locally and running some sd_embed-style prompts to verify it ran and honored the weights provided. I only currently have validated SDXL models.
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